[Keyboard] Add Budget96 by Donut Cables (#5550)

* initial commit of budget96

* non logic changes

* add my name to readme

* update matrix.c

* make the matrix representation of the layout macro

* fix up LAYOUT macro

* add missing character

* initial keymap commit

* put KC_NO where they belong

* basic keymap

* fix matrix row and col definition

* The diagram I was sent and the pins used I was sent were in opposite order from each other. This should fix the issues

* update the readme

* change up manufacturer for budget96

* update copyright date

* fix up the switch matrix and provide a keymap

* forgot the keymap

* other matrix fixes

* missing a few keys in the switch matrix

* messed up the row tracing

* tweak keymap a bit

* use a lower case k

* fix spacing for markdown rendering

* put in the reset key documentation

* clean up the file a little

* use LAYOUT_96_ansi

* add a second layer for lighting controls

* add in lighting support

* add QMK Configurator support

* use pragma once

* remove un needed matrix.c

* convert to GPIO methods

* turn on rgblight_enable and get rid of custom matrix

* set bootloadhid_bootloader to 1

* set bootmagic to lite and set it to k50

* add reset information to readme

* use i2c_master instead of custom i2c

* restore the custom i2c code

* introduce reset key and eep_rst in function layer 1

* fix up pip3 install commands

* fix up device and manufacturer names

* remove un needed comments

* add an ALL layout macro along with QMK Configurator support

* move budget96 into donutcables directory since he actually has different boards

* add a short donut cables blurb taken from his website

* update readme for make instructions to point to the new path

* Update keyboards/donutcables/budget96/config.h

Co-Authored-By: mechmerlin <30334081+mechmerlin@users.noreply.github.com>

* Update keyboards/donutcables/budget96/readme.md

Co-Authored-By: mechmerlin <30334081+mechmerlin@users.noreply.github.com>

* Update keyboards/donutcables/budget96/info.json

Co-Authored-By: mechmerlin <30334081+mechmerlin@users.noreply.github.com>

* turn on backlight

* Update keyboards/donutcables/budget96/readme.md

Co-Authored-By: mechmerlin <30334081+mechmerlin@users.noreply.github.com>

* remove extra UART and BOOTLOADER settings that are not needed

12 files changed, 871 insertions, 0 deletions

diff --git a/keyboards/donutcables/budget96/budget96.c b/keyboards/donutcables/budget96/budget96.c
new file mode 100644
index 0000000000..966dd4c129
--- /dev/null
+++ b/keyboards/donutcables/budget96/budget96.c
@@ -0,0 +1,80 @@
+/* Copyright 2019 MechMerlin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "budget96.h"
+
+#ifdef BACKLIGHT_ENABLE
+#include "backlight.h"
+#endif
+#ifdef RGBLIGHT_ENABLE
+#include "rgblight.h"
+#endif
+
+#include <avr/pgmspace.h>
+
+#include "action_layer.h"
+#include "i2c.h"
+#include "quantum.h"
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+#ifdef RGBLIGHT_ENABLE
+extern rgblight_config_t rgblight_config;
+
+void rgblight_set(void) {
+    if (!rgblight_config.enable) {
+        for (uint8_t i = 0; i < RGBLED_NUM; i++) {
+            led[i].r = 0;
+            led[i].g = 0;
+            led[i].b = 0;
+        }
+    }
+
+    i2c_init();
+    i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM);
+}
+#endif
+
+void backlight_init_ports(void) {
+    // initialize pins D0, D1, D4 and D6 as output
+    setPinOutput(D0);
+    setPinOutput(D1);
+    setPinOutput(D4);
+    setPinOutput(D6);
+
+     // turn RGB LEDs on
+    writePinHigh(D0);
+    writePinHigh(D1);
+    writePinHigh(D4);
+    writePinHigh(D6);
+}
+
+ void backlight_set(uint8_t level) {
+	if (level == 0) {
+        // turn RGB LEDs off
+        writePinLow(D0);
+        writePinLow(D1);
+        writePinLow(D4);
+        writePinLow(D6);
+	} else {
+        // turn RGB LEDs on
+        writePinHigh(D0);
+        writePinHigh(D1);
+        writePinHigh(D4);
+        writePinHigh(D6);
+	}
+ }
diff --git a/keyboards/donutcables/budget96/budget96.h b/keyboards/donutcables/budget96/budget96.h
new file mode 100644
index 0000000000..561d0cbfa2
--- /dev/null
+++ b/keyboards/donutcables/budget96/budget96.h
@@ -0,0 +1,56 @@
+/* Copyright 2019 MechMerlin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT_all( \
+    k50, k52, k53, k54, k55, k60, k6A, k7A, k70, k5B, k5C, k5D, k5E, k1D, k2E, k0D, k76, k79, k78, \
+    k40, k41, k42, k43, k44, k45, k61, k6B, k7B, k71, k4A, k4B, k4C, k4D, k4E, k46, k47, k48, k49, \
+    k30, k31, k32, k33, k34, k35, k62, k6C, k7C, k72, k3A, k3B, k3C, k3D, k36, k37, k38, k39,      \
+    k20, k21, k22, k23, k24, k25, k63, k6D, k7D, k73, k2A, k2B, k2C, k2D, k26, k27, k28, k29,      \
+    k10, k03, k11, k12, k13, k14, k15, k64, k6E, k7E, k74, k1A, k1B, k68, k16, k17, k18, k19,      \
+    k00, k01, k02, k65, k75, k0A, k0B, k66, k67, k69, k06, k08, k09                                \
+) \
+{ \
+    { k00, k01,   k02, k03, KC_NO, KC_NO, k06,   KC_NO, k08,   k09,   k0A,   k0B, KC_NO, k0D, KC_NO }, \
+    { k10, k11,   k12, k13, k14,   k15,   k16,   k17,   k18,   k19,   k1A,   k1B, KC_NO, k1D, KC_NO }, \
+    { k20, k21,   k22, k23, k24,   k25,   k26,   k27,   k28,   k29,   k2A,   k2B, k2C,   k2D, k2E },   \
+    { k30, k31,   k32, k33, k34,   k35,   k36,   k37,   k38,   k39,   k3A,   k3B, k3C,   k3D, KC_NO }, \
+    { k40, k41,   k42, k43, k44,   k45,   k46,   k47,   k48,   k49,   k4A,   k4B, k4C,   k4D, k4E },   \
+    { k50, KC_NO, k52, k53, k54,   k55,   KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, k5B, k5C,   k5D, k5E },   \
+    { k60, k61,   k62, k63, k64,   k65,   k66,   k67,   k68,   k69,   k6A,   k6B, k6C,   k6D, k6E },   \
+    { k70, k71,   k72, k73, k74,   k75,   k76,   KC_NO, k78,   k79,   k7A,   k7B, k7C,   k7D, k7E },   \
+}
+
+#define LAYOUT_96_ansi( \
+    k50, k52, k53, k54, k55, k60, k6A, k7A, k70, k5B, k5C, k5D, k5E, k1D, k2E, k0D, k76, k79, k78, \
+    k40, k41, k42, k43, k44, k45, k61, k6B, k7B, k71, k4A, k4B, k4C, k4E, k46, k47, k48, k49,      \
+    k30, k31, k32, k33, k34, k35, k62, k6C, k7C, k72, k3A, k3B, k3C, k3D, k36, k37, k38, k39,      \
+    k20, k21, k22, k23, k24, k25, k63, k6D, k7D, k73, k2A, k2B, k2D, k26, k27, k28, k29,           \
+    k10,      k11, k12, k13, k14, k15, k64, k6E, k7E, k74, k1A, k1B, k68, k16, k17, k18,           \
+    k00, k01, k02, k65, k75, k0B, k66, k67, k69, k06, k08, k09                                     \
+) \
+{ \
+    { k00, k01,   k02, KC_NO, KC_NO, KC_NO, k06,   KC_NO, k08,   k09,   KC_NO, k0B, KC_NO, k0D,   KC_NO }, \
+    { k10, k11,   k12, k13,   k14,   k15,   k16,   k17,   k18,   KC_NO, k1A,   k1B, KC_NO, k1D,   KC_NO }, \
+    { k20, k21,   k22, k23,   k24,   k25,   k26,   k27,   k28,   k29,   k2A,   k2B, KC_NO, k2D,   k2E },   \
+    { k30, k31,   k32, k33,   k34,   k35,   k36,   k37,   k38,   k39,   k3A,   k3B, k3C,   k3D,   KC_NO }, \
+    { k40, k41,   k42, k43,   k44,   k45,   k46,   k47,   k48,   k49,   k4A,   k4B, k4C,   KC_NO, k4E },   \
+    { k50, KC_NO, k52, k53,   k54,   k55,   KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, k5B, k5C,   k5D,   k5E },   \
+    { k60, k61,   k62, k63,   k64,   k65,   k66,   k67,   k68,   k69,   k6A,   k6B, k6C,   k6D,   k6E },   \
+    { k70, k71,   k72, k73,   k74,   k75,   k76,   KC_NO, k78,   k79,   k7A,   k7B, k7C,   k7D,   k7E },   \
+}
diff --git a/keyboards/donutcables/budget96/config.h b/keyboards/donutcables/budget96/config.h
new file mode 100644
index 0000000000..369cbdd07b
--- /dev/null
+++ b/keyboards/donutcables/budget96/config.h
@@ -0,0 +1,47 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+#define VENDOR_ID       0x20A0
+#define PRODUCT_ID      0x422D
+#define MANUFACTURER    DonutCables
+#define PRODUCT         budget96
+
+#define RGBLED_NUM 16
+
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 15
+
+#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5, C4, C3, C2, D7 }
+#define MATRIX_ROW_PINS { B0, B1, B2, B3, B4, B5, B6, B7 }
+#define UNUSED_PINS
+
+#define DIODE_DIRECTION COL2ROW
+#define DEBOUNCING_DELAY 5
+
+#define NO_BACKLIGHT_CLOCK
+#define BACKLIGHT_LEVELS 1
+#define RGBLIGHT_ANIMATIONS
+
+// Set bootmagic lite key to the key commonly programmed as Esc. 
+#define BOOTMAGIC_LITE_ROW 5
+#define BOOTMAGIC_LITE_COLUMN 0 
+
+/* key combination for command */
diff --git a/keyboards/donutcables/budget96/i2c.c b/keyboards/donutcables/budget96/i2c.c
new file mode 100644
index 0000000000..e8c4455ad1
--- /dev/null
+++ b/keyboards/donutcables/budget96/i2c.c
@@ -0,0 +1,106 @@
+/*
+Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// Please do not modify this file
+
+#include <avr/io.h>
+#include <util/twi.h>
+
+#include "i2c.h"
+
+void i2c_set_bitrate(uint16_t bitrate_khz) {
+    uint8_t bitrate_div = ((F_CPU / 1000l) / bitrate_khz);
+    if (bitrate_div >= 16) {
+        bitrate_div = (bitrate_div - 16) / 2;
+    }
+    TWBR = bitrate_div;
+}
+
+void i2c_init(void) {
+    // set pull-up resistors on I2C bus pins
+    PORTC |= 0b11;
+
+    i2c_set_bitrate(400);
+
+    // enable TWI (two-wire interface)
+    TWCR |= (1 << TWEN);
+
+    // enable TWI interrupt and slave address ACK
+    TWCR |= (1 << TWIE);
+    TWCR |= (1 << TWEA);
+}
+
+uint8_t i2c_start(uint8_t address) {
+    // reset TWI control register
+    TWCR = 0;
+
+    // begin transmission and wait for it to end
+    TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
+    while (!(TWCR & (1<<TWINT)));
+
+    // check if the start condition was successfully transmitted
+    if ((TWSR & 0xF8) != TW_START) {
+        return 1;
+    }
+
+    // transmit address and wait
+    TWDR = address;
+    TWCR = (1<<TWINT) | (1<<TWEN);
+    while (!(TWCR & (1<<TWINT)));
+
+    // check if the device has acknowledged the READ / WRITE mode
+    uint8_t twst = TW_STATUS & 0xF8;
+    if ((twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK)) {
+        return 1;
+    }
+
+    return 0;
+}
+
+void i2c_stop(void) {
+    TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+}
+
+uint8_t i2c_write(uint8_t data) {
+    TWDR = data;
+
+    // transmit data and wait
+    TWCR = (1<<TWINT) | (1<<TWEN);
+    while (!(TWCR & (1<<TWINT)));
+
+    if ((TWSR & 0xF8) != TW_MT_DATA_ACK) {
+        return 1;
+    }
+
+    return 0;
+}
+
+uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length) {
+    if (i2c_start(address)) {
+        return 1;
+    }
+
+    for (uint16_t i = 0; i < length; i++) {
+        if (i2c_write(data[i])) {
+            return 1;
+        }
+    }
+
+    i2c_stop();
+
+    return 0;
+}
diff --git a/keyboards/donutcables/budget96/i2c.h b/keyboards/donutcables/budget96/i2c.h
new file mode 100644
index 0000000000..aecc2c05ac
--- /dev/null
+++ b/keyboards/donutcables/budget96/i2c.h
@@ -0,0 +1,24 @@
+/*
+Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// Please do not modify this file
+
+#pragma once
+
+void i2c_init(void);
+void i2c_set_bitrate(uint16_t bitrate_khz);
+uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length);
diff --git a/keyboards/donutcables/budget96/info.json b/keyboards/donutcables/budget96/info.json
new file mode 100644
index 0000000000..40a942127f
--- /dev/null
+++ b/keyboards/donutcables/budget96/info.json
@@ -0,0 +1,16 @@
+{
+    "keyboard_name": "budget96", 
+    "url": "", 
+    "maintainer": "qmk", 
+    "width": 19, 
+    "height": 6, 
+    "layouts": {
+        "LAYOUT_all": {
+            "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0}, {"x":6, "y":0}, {"x":7, "y":0}, {"x":8, "y":0}, {"x":9, "y":0}, {"x":10, "y":0}, {"x":11, "y":0}, {"x":12, "y":0}, {"x":13, "y":0}, {"x":14, "y":0}, {"x":15, "y":0}, {"x":16, "y":0}, {"x":17, "y":0}, {"x":18, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":4, "y":1}, {"x":5, "y":1}, {"x":6, "y":1}, {"x":7, "y":1}, {"x":8, "y":1}, {"x":9, "y":1}, {"x":10, "y":1}, {"x":11, "y":1}, {"x":12, "y":1}, {"x":13, "y":1}, {"x":14, "y":1}, {"x":15, "y":1}, {"x":16, "y":1}, {"x":17, "y":1}, {"x":18, "y":1}, {"x":0, "y":2, "w":1.5}, {"x":1.5, "y":2}, {"x":2.5, "y":2}, {"x":3.5, "y":2}, {"x":4.5, "y":2}, {"x":5.5, "y":2}, {"x":6.5, "y":2}, {"x":7.5, "y":2}, {"x":8.5, "y":2}, {"x":9.5, "y":2}, {"x":10.5, "y":2}, {"x":11.5, "y":2}, {"x":12.5, "y":2}, {"x":13.5, "y":2, "w":1.5}, {"x":15, "y":2}, {"x":16, "y":2}, {"x":17, "y":2}, {"x":18, "y":2}, {"x":0, "y":3, "w":1.75}, {"x":1.75, "y":3}, {"x":2.75, "y":3}, {"x":3.75, "y":3}, {"x":4.75, "y":3}, {"x":5.75, "y":3}, {"x":6.75, "y":3}, {"x":7.75, "y":3}, {"x":8.75, "y":3}, {"x":9.75, "y":3}, {"x":10.75, "y":3}, {"x":11.75, "y":3}, {"x":12.75, "y":3}, {"x":13.75, "y":3, "w":1.25}, {"x":15, "y":3}, {"x":16, "y":3}, {"x":17, "y":3}, {"x":18, "y":3}, {"x":0, "y":4, "w":1.25}, {"x":1.25, "y":4}, {"x":2.25, "y":4}, {"x":3.25, "y":4}, {"x":4.25, "y":4}, {"x":5.25, "y":4}, {"x":6.25, "y":4}, {"x":7.25, "y":4}, {"x":8.25, "y":4}, {"x":9.25, "y":4}, {"x":10.25, "y":4}, {"x":11.25, "y":4}, {"x":12.25, "y":4, "w":1.75}, {"x":14, "y":4}, {"x":15, "y":4}, {"x":16, "y":4}, {"x":17, "y":4}, {"x":18, "y":4}, {"x":0, "y":5, "w":1.25}, {"x":1.25, "y":5, "w":1.25}, {"x":2.5, "y":5, "w":1.25}, {"x":3.75, "y":5, "w":6.25}, {"x":10, "y":5}, {"x":11, "y":5}, {"x":12, "y":5}, {"x":13, "y":5}, {"x":14, "y":5}, {"x":15, "y":5}, {"x":16, "y":5}, {"x":17, "y":5}, {"x":18, "y":5}]
+        },
+        
+        "LAYOUT_96_ansi": {
+            "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0}, {"x":6, "y":0}, {"x":7, "y":0}, {"x":8, "y":0}, {"x":9, "y":0}, {"x":10, "y":0}, {"x":11, "y":0}, {"x":12, "y":0}, {"x":13, "y":0}, {"x":14, "y":0}, {"x":15, "y":0}, {"x":16, "y":0}, {"x":17, "y":0}, {"x":18, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":4, "y":1}, {"x":5, "y":1}, {"x":6, "y":1}, {"x":7, "y":1}, {"x":8, "y":1}, {"x":9, "y":1}, {"x":10, "y":1}, {"x":11, "y":1}, {"x":12, "y":1}, {"x":13, "y":1, "w":2}, {"x":15, "y":1}, {"x":16, "y":1}, {"x":17, "y":1}, {"x":18, "y":1}, {"x":0, "y":2, "w":1.5}, {"x":1.5, "y":2}, {"x":2.5, "y":2}, {"x":3.5, "y":2}, {"x":4.5, "y":2}, {"x":5.5, "y":2}, {"x":6.5, "y":2}, {"x":7.5, "y":2}, {"x":8.5, "y":2}, {"x":9.5, "y":2}, {"x":10.5, "y":2}, {"x":11.5, "y":2}, {"x":12.5, "y":2}, {"x":13.5, "y":2, "w":1.5}, {"x":15, "y":2}, {"x":16, "y":2}, {"x":17, "y":2}, {"x":18, "y":2}, {"x":0, "y":3, "w":1.75}, {"x":1.75, "y":3}, {"x":2.75, "y":3}, {"x":3.75, "y":3}, {"x":4.75, "y":3}, {"x":5.75, "y":3}, {"x":6.75, "y":3}, {"x":7.75, "y":3}, {"x":8.75, "y":3}, {"x":9.75, "y":3}, {"x":10.75, "y":3}, {"x":11.75, "y":3}, {"x":12.75, "y":3, "w":2.25}, {"x":15, "y":3}, {"x":16, "y":3}, {"x":17, "y":3}, {"x":18, "y":3}, {"x":0, "y":4, "w":2.25}, {"x":2.25, "y":4}, {"x":3.25, "y":4}, {"x":4.25, "y":4}, {"x":5.25, "y":4}, {"x":6.25, "y":4}, {"x":7.25, "y":4}, {"x":8.25, "y":4}, {"x":9.25, "y":4}, {"x":10.25, "y":4}, {"x":11.25, "y":4}, {"x":12.25, "y":4, "w":1.75}, {"x":14, "y":4}, {"x":15, "y":4}, {"x":16, "y":4}, {"x":17, "y":4}, {"x":0, "y":5, "w":1.25}, {"x":1.25, "y":5, "w":1.25}, {"x":2.5, "y":5, "w":1.25}, {"x":3.75, "y":5, "w":6.25}, {"x":10, "y":5, "w":1.5}, {"x":11.5, "y":5, "w":1.5}, {"x":13, "y":5}, {"x":14, "y":5}, {"x":15, "y":5}, {"x":16, "y":5}, {"x":17, "y":5}, {"x":18, "y":4, "h":2}]
+        }
+    }
+}
diff --git a/keyboards/donutcables/budget96/keymaps/default/config.h b/keyboards/donutcables/budget96/keymaps/default/config.h
new file mode 100644
index 0000000000..a3ed4f762a
--- /dev/null
+++ b/keyboards/donutcables/budget96/keymaps/default/config.h
@@ -0,0 +1,19 @@
+/* Copyright 2018 MechMerlin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+// place overrides here
diff --git a/keyboards/donutcables/budget96/keymaps/default/keymap.c b/keyboards/donutcables/budget96/keymaps/default/keymap.c
new file mode 100644
index 0000000000..dcb79780e0
--- /dev/null
+++ b/keyboards/donutcables/budget96/keymaps/default/keymap.c
@@ -0,0 +1,35 @@
+/* Copyright 2018 MechMerlin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_96_ansi(\
+      KC_ESC,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,    KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR, KC_NLCK, KC_INS,  KC_HOME, KC_PGUP, KC_PSLS, \
+      KC_GRV,   KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,     KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_END,  KC_PGDN, KC_PSLS, KC_PAST,          \
+      KC_TAB,   KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,     KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS, KC_P7,   KC_P8,   KC_P9,   KC_PMNS,          \
+      KC_CAPS,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,     KC_L,    KC_SCLN, KC_QUOT, KC_ENT,  KC_P4,   KC_P5,   KC_P6,   KC_PPLS,                   \
+      KC_LSFT,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM,  KC_DOT,  KC_SLSH, KC_RSFT, KC_UP,   KC_P1,   KC_P2,   KC_P3,                              \
+      KC_LCTL,  KC_LGUI, KC_LALT, KC_SPC,  KC_RALT, MO(1),   KC_LEFT, KC_DOWN, KC_RIGHT, KC_P0,   KC_PDOT, KC_PENT),                                                               \
+
+[1] = LAYOUT_96_ansi(\
+      RESET,   EEP_RST,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, \
+      BL_TOGG, BL_STEP,  BL_ON,   BL_OFF,  BL_INC,  BL_DEC,  BL_BRTG, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,           \
+      RGB_TOG, RGB_MOD,  RGB_HUI, RGB_SAI, RGB_VAI, RGB_SPI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,           \
+      KC_TRNS, RGB_RMOD, RGB_HUD, RGB_SAD, RGB_VAD, RGB_SPD, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                    \
+      KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                             \
+      KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),                                                                \
+};
+
diff --git a/keyboards/donutcables/budget96/keymaps/default/readme.md b/keyboards/donutcables/budget96/keymaps/default/readme.md
new file mode 100644
index 0000000000..acbac7b4e0
--- /dev/null
+++ b/keyboards/donutcables/budget96/keymaps/default/readme.md
@@ -0,0 +1 @@
+# The default keymap for budget96
diff --git a/keyboards/donutcables/budget96/readme.md b/keyboards/donutcables/budget96/readme.md
new file mode 100644
index 0000000000..e44b9a3e72
--- /dev/null
+++ b/keyboards/donutcables/budget96/readme.md
@@ -0,0 +1,44 @@
+# budget96
+
+96 key atmega32a keyboard. 
+
+Keyboard Maintainer: [MechMerlin](https://github.com/mechmerlin)  
+Hardware Supported: Budget96 PCB  
+Hardware Availability: [DonutCables](https://donutcables.com/)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make donutcables/budget96:default
+
+Flashing
+
+**Reset Key:** Hold down the key located at `K00`, commonly programmed as left control while plugging in the keyboard. You may also hold down the key located at `K50`, commonly programmed as the `Esc` key. 
+
+ps2avr(GB) boards use an atmega32a microcontroller and a different bootloader. It is not flashable using the regular QMK methods. 
+
+Windows: 
+1. Download [HIDBootFlash](http://vusb.wikidot.com/project:hidbootflash).
+2. Place your keyboard into reset. 
+3. Press the `Find Device` button and ensure that your keyboard is found.
+4. Press the `Open .hex File` button and locate the `.hex` file you created.
+5. Press the `Flash Device` button and wait for the process to complete. 
+
+macOS:
+1. Install homebrew by typing the following:   
+    ```
+    /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+    ```
+2. Install `crosspack-avr`.  
+    ```
+    brew cask install crosspack-avr
+    ```
+3. Install the following packages:
+    ```
+    brew install python
+    pip3 install pyusb
+    brew install --HEAD https://raw.githubusercontent.com/robertgzr/homebrew-tap/master/bootloadhid.rb
+
+4. Place your keyboard into reset. 
+5. Flash the board by typing `bootloadHID -r` followed by the path to your `.hex` file. 
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/donutcables/budget96/rules.mk b/keyboards/donutcables/budget96/rules.mk
new file mode 100644
index 0000000000..e25b037279
--- /dev/null
+++ b/keyboards/donutcables/budget96/rules.mk
@@ -0,0 +1,49 @@
+# Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# MCU name
+MCU = atmega32a
+PROTOCOL = VUSB
+
+# unsupported features for now
+NO_UART = yes
+NO_SUSPEND_POWER_DOWN = yes
+
+# processor frequency
+F_CPU = 12000000
+
+# Bootloader
+#     This definition is optional, and if your keyboard supports multiple bootloaders of
+#     different sizes, comment this out, and the correct address will be loaded
+#     automatically (+60). See bootloader.mk for all options.
+BOOTLOADER = bootloadHID
+
+# build options
+BOOTMAGIC_ENABLE = lite
+MOUSEKEY_ENABLE = yes
+EXTRAKEY_ENABLE = yes
+CONSOLE_ENABLE = yes
+COMMAND_ENABLE = yes
+BACKLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+RGBLIGHT_CUSTOM_DRIVER = yes
+
+OPT_DEFS = -DDEBUG_LEVEL=0
+
+# custom matrix setup
+SRC = i2c.c
+
+# programming options
+PROGRAM_CMD = ./util/atmega32a_program.py $(TARGET).hex
diff --git a/keyboards/donutcables/budget96/usbconfig.h b/keyboards/donutcables/budget96/usbconfig.h
new file mode 100644
index 0000000000..223b69bb94
--- /dev/null
+++ b/keyboards/donutcables/budget96/usbconfig.h
@@ -0,0 +1,394 @@
+/* Name: usbconfig.h
+ * Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers
+ * Author: Christian Starkjohann
+ * Creation Date: 2005-04-01
+ * Tabsize: 4
+ * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ * This Revision: $Id: usbconfig-prototype.h 785 2010-05-30 17:57:07Z cs $
+ */
+
+#pragma once
+
+#include "config.h"
+
+/*
+General Description:
+This file is an example configuration (with inline documentation) for the USB
+driver. It configures V-USB for USB D+ connected to Port D bit 2 (which is
+also hardware interrupt 0 on many devices) and USB D- to Port D bit 4. You may
+wire the lines to any other port, as long as D+ is also wired to INT0 (or any
+other hardware interrupt, as long as it is the highest level interrupt, see
+section at the end of this file).
+*/
+
+/* ---------------------------- Hardware Config ---------------------------- */
+
+#define USB_CFG_IOPORTNAME      D
+/* This is the port where the USB bus is connected. When you configure it to
+ * "B", the registers PORTB, PINB and DDRB will be used.
+ */
+#define USB_CFG_DMINUS_BIT      3
+/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
+ * This may be any bit in the port.
+ */
+#define USB_CFG_DPLUS_BIT       2
+/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
+ * This may be any bit in the port. Please note that D+ must also be connected
+ * to interrupt pin INT0! [You can also use other interrupts, see section
+ * "Optional MCU Description" below, or you can connect D- to the interrupt, as
+ * it is required if you use the USB_COUNT_SOF feature. If you use D- for the
+ * interrupt, the USB interrupt will also be triggered at Start-Of-Frame
+ * markers every millisecond.]
+ */
+#define USB_CFG_CLOCK_KHZ       (F_CPU/1000)
+/* Clock rate of the AVR in kHz. Legal values are 12000, 12800, 15000, 16000,
+ * 16500, 18000 and 20000. The 12.8 MHz and 16.5 MHz versions of the code
+ * require no crystal, they tolerate +/- 1% deviation from the nominal
+ * frequency. All other rates require a precision of 2000 ppm and thus a
+ * crystal!
+ * Since F_CPU should be defined to your actual clock rate anyway, you should
+ * not need to modify this setting.
+ */
+#define USB_CFG_CHECK_CRC       0
+/* Define this to 1 if you want that the driver checks integrity of incoming
+ * data packets (CRC checks). CRC checks cost quite a bit of code size and are
+ * currently only available for 18 MHz crystal clock. You must choose
+ * USB_CFG_CLOCK_KHZ = 18000 if you enable this option.
+ */
+
+/* ----------------------- Optional Hardware Config ------------------------ */
+
+/* #define USB_CFG_PULLUP_IOPORTNAME   D */
+/* If you connect the 1.5k pullup resistor from D- to a port pin instead of
+ * V+, you can connect and disconnect the device from firmware by calling
+ * the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h).
+ * This constant defines the port on which the pullup resistor is connected.
+ */
+/* #define USB_CFG_PULLUP_BIT          4 */
+/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined
+ * above) where the 1.5k pullup resistor is connected. See description
+ * above for details.
+ */
+
+/* --------------------------- Functional Range ---------------------------- */
+
+#define USB_CFG_HAVE_INTRIN_ENDPOINT    1
+/* Define this to 1 if you want to compile a version with two endpoints: The
+ * default control endpoint 0 and an interrupt-in endpoint (any other endpoint
+ * number).
+ */
+#define USB_CFG_HAVE_INTRIN_ENDPOINT3   1
+/* Define this to 1 if you want to compile a version with three endpoints: The
+ * default control endpoint 0, an interrupt-in endpoint 3 (or the number
+ * configured below) and a catch-all default interrupt-in endpoint as above.
+ * You must also define USB_CFG_HAVE_INTRIN_ENDPOINT to 1 for this feature.
+ */
+#define USB_CFG_EP3_NUMBER              3
+/* If the so-called endpoint 3 is used, it can now be configured to any other
+ * endpoint number (except 0) with this macro. Default if undefined is 3.
+ */
+/* #define USB_INITIAL_DATATOKEN           USBPID_DATA1 */
+/* The above macro defines the startup condition for data toggling on the
+ * interrupt/bulk endpoints 1 and 3. Defaults to USBPID_DATA1.
+ * Since the token is toggled BEFORE sending any data, the first packet is
+ * sent with the oposite value of this configuration!
+ */
+#define USB_CFG_IMPLEMENT_HALT          0
+/* Define this to 1 if you also want to implement the ENDPOINT_HALT feature
+ * for endpoint 1 (interrupt endpoint). Although you may not need this feature,
+ * it is required by the standard. We have made it a config option because it
+ * bloats the code considerably.
+ */
+#define USB_CFG_SUPPRESS_INTR_CODE      0
+/* Define this to 1 if you want to declare interrupt-in endpoints, but don't
+ * want to send any data over them. If this macro is defined to 1, functions
+ * usbSetInterrupt() and usbSetInterrupt3() are omitted. This is useful if
+ * you need the interrupt-in endpoints in order to comply to an interface
+ * (e.g. HID), but never want to send any data. This option saves a couple
+ * of bytes in flash memory and the transmit buffers in RAM.
+ */
+#define USB_CFG_INTR_POLL_INTERVAL      1
+/* If you compile a version with endpoint 1 (interrupt-in), this is the poll
+ * interval. The value is in milliseconds and must not be less than 10 ms for
+ * low speed devices.
+ */
+#define USB_CFG_IS_SELF_POWERED         0
+/* Define this to 1 if the device has its own power supply. Set it to 0 if the
+ * device is powered from the USB bus.
+ */
+#define USB_CFG_MAX_BUS_POWER           500
+/* Set this variable to the maximum USB bus power consumption of your device.
+ * The value is in milliamperes. [It will be divided by two since USB
+ * communicates power requirements in units of 2 mA.]
+ */
+#define USB_CFG_IMPLEMENT_FN_WRITE      1
+/* Set this to 1 if you want usbFunctionWrite() to be called for control-out
+ * transfers. Set it to 0 if you don't need it and want to save a couple of
+ * bytes.
+ */
+#define USB_CFG_IMPLEMENT_FN_READ       0
+/* Set this to 1 if you need to send control replies which are generated
+ * "on the fly" when usbFunctionRead() is called. If you only want to send
+ * data from a static buffer, set it to 0 and return the data from
+ * usbFunctionSetup(). This saves a couple of bytes.
+ */
+#define USB_CFG_IMPLEMENT_FN_WRITEOUT   0
+/* Define this to 1 if you want to use interrupt-out (or bulk out) endpoints.
+ * You must implement the function usbFunctionWriteOut() which receives all
+ * interrupt/bulk data sent to any endpoint other than 0. The endpoint number
+ * can be found in 'usbRxToken'.
+ */
+#define USB_CFG_HAVE_FLOWCONTROL        0
+/* Define this to 1 if you want flowcontrol over USB data. See the definition
+ * of the macros usbDisableAllRequests() and usbEnableAllRequests() in
+ * usbdrv.h.
+ */
+#define USB_CFG_DRIVER_FLASH_PAGE       0
+/* If the device has more than 64 kBytes of flash, define this to the 64 k page
+ * where the driver's constants (descriptors) are located. Or in other words:
+ * Define this to 1 for boot loaders on the ATMega128.
+ */
+#define USB_CFG_LONG_TRANSFERS          0
+/* Define this to 1 if you want to send/receive blocks of more than 254 bytes
+ * in a single control-in or control-out transfer. Note that the capability
+ * for long transfers increases the driver size.
+ */
+/* #define USB_RX_USER_HOOK(data, len)     if(usbRxToken == (uchar)USBPID_SETUP) blinkLED(); */
+/* This macro is a hook if you want to do unconventional things. If it is
+ * defined, it's inserted at the beginning of received message processing.
+ * If you eat the received message and don't want default processing to
+ * proceed, do a return after doing your things. One possible application
+ * (besides debugging) is to flash a status LED on each packet.
+ */
+/* #define USB_RESET_HOOK(resetStarts)     if(!resetStarts){hadUsbReset();} */
+/* This macro is a hook if you need to know when an USB RESET occurs. It has
+ * one parameter which distinguishes between the start of RESET state and its
+ * end.
+ */
+/* #define USB_SET_ADDRESS_HOOK()              hadAddressAssigned(); */
+/* This macro (if defined) is executed when a USB SET_ADDRESS request was
+ * received.
+ */
+#define USB_COUNT_SOF                   1
+/* define this macro to 1 if you need the global variable "usbSofCount" which
+ * counts SOF packets. This feature requires that the hardware interrupt is
+ * connected to D- instead of D+.
+ */
+/* #ifdef __ASSEMBLER__
+ * macro myAssemblerMacro
+ *     in      YL, TCNT0
+ *     sts     timer0Snapshot, YL
+ *     endm
+ * #endif
+ * #define USB_SOF_HOOK                    myAssemblerMacro
+ * This macro (if defined) is executed in the assembler module when a
+ * Start Of Frame condition is detected. It is recommended to define it to
+ * the name of an assembler macro which is defined here as well so that more
+ * than one assembler instruction can be used. The macro may use the register
+ * YL and modify SREG. If it lasts longer than a couple of cycles, USB messages
+ * immediately after an SOF pulse may be lost and must be retried by the host.
+ * What can you do with this hook? Since the SOF signal occurs exactly every
+ * 1 ms (unless the host is in sleep mode), you can use it to tune OSCCAL in
+ * designs running on the internal RC oscillator.
+ * Please note that Start Of Frame detection works only if D- is wired to the
+ * interrupt, not D+. THIS IS DIFFERENT THAN MOST EXAMPLES!
+ */
+#define USB_CFG_CHECK_DATA_TOGGLING     0
+/* define this macro to 1 if you want to filter out duplicate data packets
+ * sent by the host. Duplicates occur only as a consequence of communication
+ * errors, when the host does not receive an ACK. Please note that you need to
+ * implement the filtering yourself in usbFunctionWriteOut() and
+ * usbFunctionWrite(). Use the global usbCurrentDataToken and a static variable
+ * for each control- and out-endpoint to check for duplicate packets.
+ */
+#define USB_CFG_HAVE_MEASURE_FRAME_LENGTH   0
+/* define this macro to 1 if you want the function usbMeasureFrameLength()
+ * compiled in. This function can be used to calibrate the AVR's RC oscillator.
+ */
+#define USB_USE_FAST_CRC                0
+/* The assembler module has two implementations for the CRC algorithm. One is
+ * faster, the other is smaller. This CRC routine is only used for transmitted
+ * messages where timing is not critical. The faster routine needs 31 cycles
+ * per byte while the smaller one needs 61 to 69 cycles. The faster routine
+ * may be worth the 32 bytes bigger code size if you transmit lots of data and
+ * run the AVR close to its limit.
+ */
+
+/* -------------------------- Device Description --------------------------- */
+
+#define USB_CFG_VENDOR_ID       (VENDOR_ID & 0xFF), ((VENDOR_ID >> 8) & 0xFF)
+/* USB vendor ID for the device, low byte first. If you have registered your
+ * own Vendor ID, define it here. Otherwise you may use one of obdev's free
+ * shared VID/PID pairs. Be sure to read USB-IDs-for-free.txt for rules!
+ * *** IMPORTANT NOTE ***
+ * This template uses obdev's shared VID/PID pair for Vendor Class devices
+ * with libusb: 0x16c0/0x5dc.  Use this VID/PID pair ONLY if you understand
+ * the implications!
+ */
+#define USB_CFG_DEVICE_ID       (PRODUCT_ID & 0xFF), ((PRODUCT_ID >> 8) & 0xFF)
+/* This is the ID of the product, low byte first. It is interpreted in the
+ * scope of the vendor ID. If you have registered your own VID with usb.org
+ * or if you have licensed a PID from somebody else, define it here. Otherwise
+ * you may use one of obdev's free shared VID/PID pairs. See the file
+ * USB-IDs-for-free.txt for details!
+ * *** IMPORTANT NOTE ***
+ * This template uses obdev's shared VID/PID pair for Vendor Class devices
+ * with libusb: 0x16c0/0x5dc.  Use this VID/PID pair ONLY if you understand
+ * the implications!
+ */
+#define USB_CFG_DEVICE_VERSION  0x00, 0x02
+/* Version number of the device: Minor number first, then major number.
+ */
+#define USB_CFG_VENDOR_NAME     'D', 'o', 'n', 'u', 't', 'C', 'a', 'b', 'l', 'e', 's'
+#define USB_CFG_VENDOR_NAME_LEN 11
+/* These two values define the vendor name returned by the USB device. The name
+ * must be given as a list of characters under single quotes. The characters
+ * are interpreted as Unicode (UTF-16) entities.
+ * If you don't want a vendor name string, undefine these macros.
+ * ALWAYS define a vendor name containing your Internet domain name if you use
+ * obdev's free shared VID/PID pair. See the file USB-IDs-for-free.txt for
+ * details.
+ */
+#define USB_CFG_DEVICE_NAME     'b', 'u', 'd', 'g', 'e', 't', '9', '6'
+#define USB_CFG_DEVICE_NAME_LEN 8
+/* Same as above for the device name. If you don't want a device name, undefine
+ * the macros. See the file USB-IDs-for-free.txt before you assign a name if
+ * you use a shared VID/PID.
+ */
+/*#define USB_CFG_SERIAL_NUMBER   'N', 'o', 'n', 'e' */
+/*#define USB_CFG_SERIAL_NUMBER_LEN   0 */
+/* Same as above for the serial number. If you don't want a serial number,
+ * undefine the macros.
+ * It may be useful to provide the serial number through other means than at
+ * compile time. See the section about descriptor properties below for how
+ * to fine tune control over USB descriptors such as the string descriptor
+ * for the serial number.
+ */
+#define USB_CFG_DEVICE_CLASS        0
+#define USB_CFG_DEVICE_SUBCLASS     0
+/* See USB specification if you want to conform to an existing device class.
+ * Class 0xff is "vendor specific".
+ */
+#define USB_CFG_INTERFACE_CLASS     3   /* HID */
+#define USB_CFG_INTERFACE_SUBCLASS  1   /* Boot */
+#define USB_CFG_INTERFACE_PROTOCOL  1   /* Keyboard */
+/* See USB specification if you want to conform to an existing device class or
+ * protocol. The following classes must be set at interface level:
+ * HID class is 3, no subclass and protocol required (but may be useful!)
+ * CDC class is 2, use subclass 2 and protocol 1 for ACM
+ */
+#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH    0
+/* Define this to the length of the HID report descriptor, if you implement
+ * an HID device. Otherwise don't define it or define it to 0.
+ * If you use this define, you must add a PROGMEM character array named
+ * "usbHidReportDescriptor" to your code which contains the report descriptor.
+ * Don't forget to keep the array and this define in sync!
+ */
+
+/* #define USB_PUBLIC static */
+/* Use the define above if you #include usbdrv.c instead of linking against it.
+ * This technique saves a couple of bytes in flash memory.
+ */
+
+/* ------------------- Fine Control over USB Descriptors ------------------- */
+/* If you don't want to use the driver's default USB descriptors, you can
+ * provide our own. These can be provided as (1) fixed length static data in
+ * flash memory, (2) fixed length static data in RAM or (3) dynamically at
+ * runtime in the function usbFunctionDescriptor(). See usbdrv.h for more
+ * information about this function.
+ * Descriptor handling is configured through the descriptor's properties. If
+ * no properties are defined or if they are 0, the default descriptor is used.
+ * Possible properties are:
+ *   + USB_PROP_IS_DYNAMIC: The data for the descriptor should be fetched
+ *     at runtime via usbFunctionDescriptor(). If the usbMsgPtr mechanism is
+ *     used, the data is in FLASH by default. Add property USB_PROP_IS_RAM if
+ *     you want RAM pointers.
+ *   + USB_PROP_IS_RAM: The data returned by usbFunctionDescriptor() or found
+ *     in static memory is in RAM, not in flash memory.
+ *   + USB_PROP_LENGTH(len): If the data is in static memory (RAM or flash),
+ *     the driver must know the descriptor's length. The descriptor itself is
+ *     found at the address of a well known identifier (see below).
+ * List of static descriptor names (must be declared PROGMEM if in flash):
+ *   char usbDescriptorDevice[];
+ *   char usbDescriptorConfiguration[];
+ *   char usbDescriptorHidReport[];
+ *   char usbDescriptorString0[];
+ *   int usbDescriptorStringVendor[];
+ *   int usbDescriptorStringDevice[];
+ *   int usbDescriptorStringSerialNumber[];
+ * Other descriptors can't be provided statically, they must be provided
+ * dynamically at runtime.
+ *
+ * Descriptor properties are or-ed or added together, e.g.:
+ * #define USB_CFG_DESCR_PROPS_DEVICE   (USB_PROP_IS_RAM | USB_PROP_LENGTH(18))
+ *
+ * The following descriptors are defined:
+ *   USB_CFG_DESCR_PROPS_DEVICE
+ *   USB_CFG_DESCR_PROPS_CONFIGURATION
+ *   USB_CFG_DESCR_PROPS_STRINGS
+ *   USB_CFG_DESCR_PROPS_STRING_0
+ *   USB_CFG_DESCR_PROPS_STRING_VENDOR
+ *   USB_CFG_DESCR_PROPS_STRING_PRODUCT
+ *   USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
+ *   USB_CFG_DESCR_PROPS_HID
+ *   USB_CFG_DESCR_PROPS_HID_REPORT
+ *   USB_CFG_DESCR_PROPS_UNKNOWN (for all descriptors not handled by the driver)
+ *
+ * Note about string descriptors: String descriptors are not just strings, they
+ * are Unicode strings prefixed with a 2 byte header. Example:
+ * int  serialNumberDescriptor[] = {
+ *     USB_STRING_DESCRIPTOR_HEADER(6),
+ *     'S', 'e', 'r', 'i', 'a', 'l'
+ * };
+ */
+
+#define USB_CFG_DESCR_PROPS_DEVICE                  0
+#define USB_CFG_DESCR_PROPS_CONFIGURATION           USB_PROP_IS_DYNAMIC
+//#define USB_CFG_DESCR_PROPS_CONFIGURATION           0
+#define USB_CFG_DESCR_PROPS_STRINGS                 0
+#define USB_CFG_DESCR_PROPS_STRING_0                0
+#define USB_CFG_DESCR_PROPS_STRING_VENDOR           0
+#define USB_CFG_DESCR_PROPS_STRING_PRODUCT          0
+#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER    0
+#define USB_CFG_DESCR_PROPS_HID                     USB_PROP_IS_DYNAMIC
+//#define USB_CFG_DESCR_PROPS_HID                     0
+#define USB_CFG_DESCR_PROPS_HID_REPORT              USB_PROP_IS_DYNAMIC
+//#define USB_CFG_DESCR_PROPS_HID_REPORT              0
+#define USB_CFG_DESCR_PROPS_UNKNOWN                 0
+
+#define usbMsgPtr_t unsigned short
+/* If usbMsgPtr_t is not defined, it defaults to 'uchar *'. We define it to
+ * a scalar type here because gcc generates slightly shorter code for scalar
+ * arithmetics than for pointer arithmetics. Remove this define for backward
+ * type compatibility or define it to an 8 bit type if you use data in RAM only
+ * and all RAM is below 256 bytes (tiny memory model in IAR CC).
+ */
+
+/* ----------------------- Optional MCU Description ------------------------ */
+
+/* The following configurations have working defaults in usbdrv.h. You
+ * usually don't need to set them explicitly. Only if you want to run
+ * the driver on a device which is not yet supported or with a compiler
+ * which is not fully supported (such as IAR C) or if you use a differnt
+ * interrupt than INT0, you may have to define some of these.
+ */
+/* #define USB_INTR_CFG            MCUCR */
+/* #define USB_INTR_CFG_SET        ((1 << ISC00) | (1 << ISC01)) */
+/* #define USB_INTR_CFG_CLR        0 */
+/* #define USB_INTR_ENABLE         GIMSK */
+/* #define USB_INTR_ENABLE_BIT     INT0 */
+/* #define USB_INTR_PENDING        GIFR */
+/* #define USB_INTR_PENDING_BIT    INTF0 */
+/* #define USB_INTR_VECTOR         INT0_vect */
+
+/* Set INT1 for D- falling edge to count SOF */
+/* #define USB_INTR_CFG            EICRA */
+#define USB_INTR_CFG_SET        ((1 << ISC11) | (0 << ISC10))
+/* #define USB_INTR_CFG_CLR        0 */
+/* #define USB_INTR_ENABLE         EIMSK */
+#define USB_INTR_ENABLE_BIT     INT1
+/* #define USB_INTR_PENDING        EIFR */
+#define USB_INTR_PENDING_BIT    INTF1
+#define USB_INTR_VECTOR         INT1_vect
+